Results 41 to 50 of about 11,703 (241)

Attractors of multivalued semiflows generated by differential inclusions and their approximations

open access: yesAbstract and Applied Analysis, 2000
We prove the existence of global compact attractors for differential inclusions and obtain some results concerning the continuity and upper semicontinuity of the attractors for approximating and perturbed inclusions.
Alexei V. Kapustian, José Valero
doaj   +1 more source

Separating sets by upper semicontinuous and Darboux upper semicontinuous functions

open access: yesTopology and its Applications, 2013
Abstract In this paper we characterize the pairs ( A 0 , A 1 ) and ( A − , A + ) of disjoint sets which can be separated by an upper semicontinuous function and by a Darboux upper semicontinuous function.
openaire   +1 more source

On structure of upper semicontinuity

open access: yesJournal of Mathematical Analysis and Applications, 1982
AbstractThe refinement of a Choquet theorem on (strong) upper semi-continuity and its relation to the Vainstein lemma are dealt with here. Relevance of subcontinuity is discussed. Consequently, an improvement of a characterization theorem of Dolecki and Rolewicz is achieved.
Dolecki, Szymon, Lechicki, Alojzy
openaire   +1 more source

Asymptotic behavior for non-autonomous stochastic plate equation on unbounded domains

open access: yesOpen Mathematics, 2019
We study the asymptotic behavior of solutions to the non-autonomous stochastic plate equation driven by additive noise defined on unbounded domains.
Yao Xiaobin, Liu Xilan
doaj   +1 more source

Debt Ceilings With Fiscal Intransparency and Imperfect Electoral Accountability

open access: yesInternational Economic Review, EarlyView.
ABSTRACT We study optimal debt ceilings in a political‐agency model with uncertainty about both policymaker type (benevolent or selfish) and economic state (good or bad). Elections generate disciplining and selection effects that differ across pooling, hybrid, and separating equilibria induced by different ceilings.
Randolph Sloof   +2 more
wiley   +1 more source

Nonemptiness of the Alpha‐Core

open access: yesJournal of Public Economic Theory, Volume 28, Issue 1, February 2026.
ABSTRACT We prove nonemptiness of the α $\alpha $‐core for balanced games with nonordered preferences, extending and generalizing in several aspects the results of Scarf (1971), Border (1984), Florenzano (1989), Yannelis (1991b), and Kajii (1992). In particular, we answer an open question in Kajii (1992) regarding the applicability of the nonemptiness ...
V. Filipe Martins‐da‐Rocha   +1 more
wiley   +1 more source

Long-time dynamical behavior for a piezoelectric system with magnetic effect and nonlinear dampings

open access: yesElectronic Research Archive, 2022
This paper is concerned with the long-time dynamical behavior of a piezoelectric system with magnetic effect, which has nonlinear damping terms and external forces with a parameter.
Gongwei Liu, Mengru Wang, Pengyan Ding
doaj   +1 more source

MF-traces and a Lower Bound for the Topological Free Entropy Dimension in Unital C*-algebras [PDF]

open access: yes, 2011
We continue previous work on Voiculescu's topological free entropy dimension {\delta}_{top}. We introduce the notions of MF-trace, MF-ideal, and MF-nuclearity and use these concepts to obtain upper and lower bounds for {\delta}_{top}, and in many cases ...
Hadwin, Don   +3 more
core  

Efficiency in Pure‐Exchange Economies With Risk‐Averse Monetary Utilities

open access: yesMathematical Finance, Volume 36, Issue 1, Page 99-117, January 2026.
ABSTRACT We study Pareto efficiency in a pure‐exchange economy where agents' preferences are represented by risk‐averse monetary utilities. These coincide with law‐invariant monetary utilities, and they can be shown to correspond to the class of monotone, (quasi‐)concave, Schur concave, and translation‐invariant utility functionals. This covers a large
Mario Ghossoub, Michael B. Zhu
wiley   +1 more source

Upper Semicontinuity of Attractors for a Non-Newtonian Fluid under Small Random Perturbations

open access: yesAbstract and Applied Analysis, 2014
This paper investigates the limiting behavior of attractors for a two-dimensional incompressible non-Newtonian fluid under small random perturbations. Under certain conditions, the upper semicontinuity of the attractors for diminishing perturbations is ...
Jianxin Luo
doaj   +1 more source

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